Air-coupling



F. B. DE IVIUND.

AIR COUPLING. APPLICATION FILED APR.`29, 1920- awww PA TENT OIFFIAC FRANK 3.', DE HUND,

OF EAST STBOUDSBURG, PENNSYLVANIA.

AIRPCOUPLING.

Specification of Letters Patent.

Patented Mar. 8, 1921.

Application-med April 29, 1920.` Serial No. 377,599.

To all 'wwmz't-'may concern:

Be it known that I', FRANK B; DEMUND, a citizen; of the United States, residing at ast Stroudsburg, in the county of Monroe and State of Pennsylvania, have` invented a new and useful Air-Coupling, of'which the: following is a specification.

man to enter between the cars.

It is within the province of the disclosure to improve to enhance the utility of invention appertains.

Vith theV above which will appear as the desenption proand claimed, being understood that, within the scope of what isclaimed, changes in the precise embodiment of-A the invention shown can be made without departing from the spirit of theinvention.

n the accompanying drawings Figure 1 shows in top plan, a device constructed in accordancewith the invention; vertical longitudinal section of the structure shown in Fig. 1, parts being broken away; Fig. 3 is a cross section taken approximately on the line 3-3 of Fig. 2; ig. 4 is a cross section on the line 4`4 of Fig. 1,' and Fig. 5 is an end view showing one of the coupling elements.

The device includes a pair of supports 1 and 2 preferably of rectangular cross section and having projecting parts 3 whereby the supports may be connected to rolling stock of any kind. The supports 1 and 2 are provided with depending flanges 4 connected by a front and a rear bolt 6. A member 7 is, mounted for longitudinal reciprocation in the support 2, a similar member 8 being mounted for reclprocation in the support 1. The member 7 has a bore 9, the bore of the member 8 being denoted by the numeral 10. Tubes 11 are fixed in the outer ends of the members 7 and 8 and communicate with the bores and 10, the tubes being slidably mounted 1n the outer end walls of the supports 1 and 2. With the outer end of each tube 11 is connected a section of the air hose 12, the same being held in placeby a clamp 14. Com` pression springs 15 are located in the supports-1 and 2 and abut at their outer ends against the end. walls of the supports, the' springs abutting at their inner ends against the members 7 and 8 and serving to advance the same. The members 7 andV 8 are provided with depending loop-shaped projections 16 slidable between the flanges 4. hen the members 7 and 8 areadvanced by thesprings 15, the projections 16 abut agalnst the front bolts 5 which connect the angesy 4, and limit the forward movement of the saldi members.

he memberr 7 is provided with an enlargement 17 defining a shoulder 18. A nipple 19'1's threaded in the outer end of the part 17 and with a web 20. yhe numeral 21 denotes a ring having a flange 22 engaged between the web 20 and the end `of. the part 17, the ring' 21 having aforward flange -23. The nipple 19 is provided with a flange 23. overlapped 23, the flange acts as a guide or backing for the lingers, preventing their distortion. The web 20, cooperating with the part 17, serves to hold the ring 21 in place and the ring, that is, the flange 23 thereof, coacts with the lingers here is a mutual interengagement between the parts alluded to, which results in a strong and compact structure. l

he memb Side levers are fulcrumed on the bolts 33 and are located between the flanges 32, the levers having forks 36 adapted to engage behind the shoulder 18. Springs 37 are provided, the outer ends of the springs such that a trainman may operate 41 and consequently operate vcome together,

front of their engaging the side levers 35 in the ulcra 33, the intermediate portions o springs being engaged aroun and the inner ends of the springs being engaged with the flanges 32. The springs 37 tend to swing 35 toward each other, so that the Jr'orks 36 will engage behind the shoulder 18. There is a boss 38 on the enlargement 25, the boss carrying a pivot element 42 whereon an intermediate lever 39 is fulcrumed, the lever 39 being connected by links 40 with the rear ork inner ends of the side levers 35. The numeral 41 denotes an operating member pivoted to one end of the intermediate lever 39 and of sufficient length to extend outwardly to the side of the car wherewith the device is assemb ed, the construction being the part the levers 35, between the cars or otherlife in `ieopardy.

operation, when the cars the levers 35 are separated by engagement with the part 21 and, under the action of the springs 37, the forks 36 engage behind the shoulder 18.. The enlarged head 28 of the nipple 27 enters within and is held by the spring fingers 24, and, thus, the trainline is established. Owing to the presence of the springs 15, the members 7 and 8 are advanced toward each other, so as to maintain connection established, as shown in Fig. 2 of the drawings, the springs 15, of course,

without entering wise placing his In practical minimizing the sh when the coupling elements are brought together. When it is desired to break the trainline, it is not necessary for the trainman to enter between the cars. The rod 41 may beoperated from a point at the side of the cars, the lever 39 being tilted, and the links 40 tilting the levers 35, the Jforks 36 being brought out of engagement with the shoulder 18.

d the bolts 33 the outer ends of the leversl vweb and the end of said member,

Having thus described the invention, what is claimed is Y 1. In a device of the class described, supports; members slidable in the supports an rovided with coupling elements, one of said members having a shoulder; levers Jrulcrumed on the other of said members and adapted to coperate with the shoulder; spring means coacting with the levers, to cause the levers to coperate der; another lever ulcrumed on said other member; links connecting said other lever with the first specified levers; and an operating member extended laterally rom said other lever. c

2. In a device of the class described, a support; a member slidable in the support; a nipple mounted at one end in'sa'id member and provided at its other end with spring the nipple having a web; a a iiange engaged between the and a flange engaged behind the fingers; and a second member having means for engaging the fingers.

3. In a device of the class described, supports; members slidable in the supports and provided with coupling elements, one or' said members having a shoulder; levers ulcrumed on the other ofv said members and adapted to coperate with thek shoulder; spring means coacting with the levers, to cause the levers to coperate with the shoulder; another lever ulcrumed on sai other member; links connecting said other lever with the first speciied levers; and means for operating said other lever.

In testimony Vthat I claim the foregoing as my own, have hereto affixed by signature in .the presence of two witnesses.

FRANK B. DE MUND Witnesses:

LAWRENCE DALE,

B. W. LEE. 

